1. For the 24 hours from 0900UTC*
on the date to 0900UTC* on the following
day. (The maximum temperature is generally in the afternoon*)

2. For the 24 hours ending at 0900UTC*
on the date. (The minimum temperature is generally just after sunrise*)
*Where a maximum is overnight or minimum is during the day the figure is
shown in italics. This often occurs in winter

3. For the 24 hours from 0900UTC*
on the date to 0900UTC* on following
day. SEPA = Scottish Environmental Protection Agency 5" diameter gauge

4. For the period from sunset on previous day to 0900UTC*
on the date

5.For the period sunrise to sunset on the date

6. For the period 0000UTC*-2400UTC*
on the date i.e the Calendar Day

* UTC is Universal Time Coordinated. It has
been adopted by the UK Met.Office
in place of Greenwich Mean Time (GMT). When British Summer Time is in force
UTC is BST minus one hour ,e.g.1000BST=0900UTC